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I have a RC receiver that produces a PWM signal for hobby servos (specs below). I would like to control some LED lighting with it. What are my options? I obviously do care about weight, like I do about functionality.

The setup is as follows:

enter image description here

The PWM specs are as explained at https://en.wikipedia.org/wiki/Servo_control -- 5V, 50 Hz, pulse width 1000 μs for OFF, 2000 μs for ON. I plan to use current-regulating LEDs rated 5 to 20 V as I don't need to dim them, but if a dimming option is available with output voltage e.g. 0 to 5 V, I'll happily switch to some common 3.1 V LEDs + resistors.

I feel like I cannot be the first one facing this issue, but I can't find any commercial solution, possibly because I don't know what I'm looking for.

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  • \$\begingroup\$ Do you have more details on the LEDs? Maybe a datasheet? If they are already self-regulating, it might be hard to dim them. \$\endgroup\$
    – Aaron
    Commented Sep 8, 2021 at 17:50
  • \$\begingroup\$ connect a servo horn to a potentiometer shaft \$\endgroup\$
    – jsotola
    Commented Sep 8, 2021 at 19:26
  • \$\begingroup\$ @Aaron I don't need to dim them. I clarified this, I hope it's better now. \$\endgroup\$
    – yo'
    Commented Sep 8, 2021 at 20:16
  • \$\begingroup\$ I'm confused then. What do you mean by "control" for LEDs? Just on/off? \$\endgroup\$
    – Aaron
    Commented Sep 8, 2021 at 20:53
  • \$\begingroup\$ @Aaron yes, exactly \$\endgroup\$
    – yo'
    Commented Sep 8, 2021 at 22:01

1 Answer 1

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I acutally found what I was looking for after some more googling. One such item is called Menace RCswitch. I'm not sure how it's wired internally, but it seems it will do the trick just fine.

(Note that it's put between the powered device and V-, so it's supposed to switch the minus side of the device, not the plus side.)

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